Best drop in wheel to run with 42s besides x charger

whats your opinion and experence with the best drop in wheel that you just need 42s with to run besides an X and rrpfr . top end wise? Im running the et 127 right now and previously had the s3 . as far as i know the s3 and et127 are almost equal ?

whats your opinion and experence with the best drop in wheel that you just need 42s with to run besides an X and rrpfr . top end wise? Im running the et 127 right now and previously had the s3 . as far as i know the s3 and et127 are almost equal ?

s3 , rotax 127 with spacer, and et127 with spacer are all comparable and the max you can run on 42's alone,